// Copyright 2024, Pulumi Corporation.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

package channel

// FilterRead reads every item from the input channel and writes it to the output channel if the given filter function
// returns true for it.
func FilterRead[T any](ch <-chan T, f func(T) bool) <-chan T {
	out := make(chan T)
	go func() {
		for v := range ch {
			if f(v) {
				out <- v
			}
		}
		close(out)
	}()
	return out
}
